package twoDimensionalArray;

public class 遍历求和 {
    public static void main(String[] args) {
        int arr[][]= {{4,6}, {1,4,5,7},{-2}};
        int sum=0;
        for (int i = 0; i < arr.length; i++) {
            for (int j = 0; j < arr[i].length; j++) {
                sum += arr[i][j];
                System.out.print(arr[i][j]+"\t");
            }
            System.out.println();
        }
        System.out.println("sum="+sum);
    }
}
